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avformat/mux: do not call write_packet with a flush packet if header is not written 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2016-06-11 20:25:58 +02:00
parent 517fe64406
commit e07b8d68f5
1 changed files with 5 additions and 0 deletions
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5
libavformat/mux.c
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@ -823,6 +823,11 @@ int av_write_frame(AVFormatContext *s, AVPacket *pkt)
if (!pkt) {
if (s->oformat->flags & AVFMT_ALLOW_FLUSH) {
if (!s->internal->header_written) {
ret = s->internal->write_header_ret ? s->internal->write_header_ret : write_header_internal(s);
if (ret < 0)
return ret;
}
ret = s->oformat->write_packet(s, NULL);
if (s->flush_packets && s->pb && s->pb->error >= 0 && s->flags & AVFMT_FLAG_FLUSH_PACKETS)
avio_flush(s->pb);